Pedal attachment for pneumatically-operated instruments.



PATENTBD OCT. 9, 1906.

N. D. HOSLEY. PEDAL ATTACHMENT FOR PNEUMATIOALLY OPERATED INSTRUMENTS.

APPLICATION FILED SEPT. 14, 1905.

2 SHEETS-SHEET 1.

PATENTED OCT. 9, 1906.

N. D. HOSLEY.

PEDAL ATTACHMENT FOR PNEUMATIGALLY OPERATED INSTRUMENTS.

APPLICATION FILED SEPT.14,1905.

2 SHEETS-*SHEET 2.

UNITED STATES PATENT OFFICE.

THE VVTLCOX & WHITE 00.,

CORPORATION.

OF MERIDEN, CONNECTICUT, A

PEDAL ATTACHMENT FOR PNEUMATlCALLY-OPERATED INSTRUMENTS.

Specification of Letters Patent.

Patented Oct. 9, 1906.

Application filed September 14,1905. Serial No. 278. 110.

To all whom it may concern.-

Be it known that I, NELSON D. HosLEY, a citizen of the United States, residing at Meriden, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Pedal Attachments for Pneumatically-Operated Instruments; and I do hereby declare the following, when taken in connection with the accompanying drawings and the figures of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent, in

Figure 1, a side view of the lower portion of an instrument, including a bellows-board and. connections therewith to a pneumatic,

the parts being shown in a closed position; Fig. 2, a front or plan view of the lower portion of an instrument partially broken away to show the connection between the pneumatic and the ped al-board Fig. 3, a side view of the parts shown in Fig. 1 with the V edal-board in the open position; Fig. 4, a roken perspective view of one of the pedallevers and rocker to which it is pivoted.

This invention relates to an. improvement in pedal attachment for pneumatically-operated instruments, and particularly to pianos in which the pneumatic-operator is arranged within a pianocase, and especially to such as have the pedals arranged upon a pedal-board which is adapted to fold upward into a recess formed for it in the front fall of a piano-case, the object of the invention being to provide a check which will prevent the rapid movement of the pedal-board when it is disene The invention consists in the construction as hereinafter described, and particularly recited in the claim.

In illustrating my invention I have shown it as applied to the well-known form of pedals which include a pedal-board 2, hinged to a bottom rail 3, so as to fold into a recess formed for it in the lower panel 4 of a pianocase, the pedal-board 2 having a clearanceopening 5 at the center for the pedals 6 and 7 of the piano proper. This board is held in its closed position by means of a latch 8, entering a hole in a plate 9, secured at the outer end of the pedal-board, this latch being adapted to be depressed so as to disengage the board by any preferred arrangement of levers operated through the key-slip or other convenient means. Secured to the face of the pedalboard 2 are treads 10 and 11, adapted to bear upon rollers 12, mounted in the ends of levers 13, which are pivoted to rockers 14, which in turn are pivoted at their upper ends within the case and connected at their lower ends with the movable members of feeders 15. The levers 13 are bifurcated, as are the rockers 14, the ends of the levers 13 having rearwardly-projecting points, which are pivoted between the sides of the rockers 14, the lower surface 13 of the levers 13 bearing upon the central portion 14 of the rockers when the levers 13 are in an operative position. Secured within the case and, as herein shown, to the front wall 16 of an exhaust-chamber is a pneumatic 17, and connected with the ends of the movable member of the pneumatic at each end is a rod 18, which extends across the pneumatic and has downwardly-turned ends 19 and 20, by which the rod is pivotally connected to the case or to the face of the said exhaust-chamber. This pneumatic 17 is arranged at one side and preferably to the right of the pedal-board 2, and the left-hand end of the rod 18 is bent to form crank 20 the end of which is connected by a link 21 with the face of the pedal-board, the crank being so proportioned and arranged that when the pedal-board is raised or placed in its closed position the pneumatic 17 will be closed. If then the pedal-board 2 be released from the latch 8, it will naturally fall either by force of gravity or by the action of the feeders 15, and this fall is checked by the action of the pneumatic 17, which as it gradually opens swings the rod 18 outward and permits the link 21. to fall or move with the pedal-board but the pneumatic does not interfere with the rapid lifting of the pedal-board 2 when it is desired to close the same. It will thus be seen that the pneumatic-check is applied, which permits the pedal-board to move slowly to its open position, and consequently care is not required to prevent the pedalboard from slamming as it is opened.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a pneumatic instrument, the combina- 0 ening of the board is retarded by the power 10 tion with the case and the pedal-board hinged oi the pneumatic substantially as described. thereto, of a pneumatic arranged Within the In testimony whereof I have signed this case, a rod pivotally mounted in the case and specification in the presence of two subscrib- 5 extending longitudinally across the top of ing Witnesses.

said neumatic and cou led to the movable NELSON D. HOSLEY. mem er thereof, a cran at one end of said Witnesses: rod, and a link connecting the end of the L. A. KUHNLE,

crank with said pedal-board whereby the F. C. WHITE. 

